Alternative spelling: Distrophaeus
Full reference: E. D. Cope. 1877. On a dinosaurian from the Trias of Utah. Proceedings of the American Philosophical Society 16:579-584
Parent taxon: Sauropoda according to P. Upchurch et al. 2004
Sister taxa: Agustiniidae, Amygdalodon, Antetonitrus, Archaeodontosaurus, Atlantosauridae, Blikanasaurus, Bothriospondylidae, Bothrosauropodidae, Bothrosauropodoidea, Brontopodidae, Brontopodus, Brontosauridae, Camarasauroidea, Camelotia, Cardiodontidae, Chinshakiangosaurus, Chubutisauridae, Chuxiongosaurus, Deuterosauropodopus, Eusauropoda, Faveoloolithidae, Gongxianosaurus, Gravisauria, Haplocanthosauridae, Homalosauropodidae, Homalosauropodoidea, Isanosaurus, Jingshanosaurus, Kotasaurus, Lamplughsaura, Mamenchisauroidea, Melanorosaurus, Microsaurops, Ohmdenosaurus, Oplosaurus, Ornithopsidae, Parabrontopodidae, Parabrontopodus, Pleurocoelidae, Polyonyx, Ravatichnus, Rotundichnus, Spinophorosaurus, Tapinosaurus, Tendaguriidae, Vulcanodon, Algoasaurus bauri, Morinosaurus priscus
Subtaxa: Dystrophaeus viaemalae
Type: Dystrophaeus viaemalae
Ecology: ground dwelling herbivore